There is a new challenge for the developers of the Widelands editor! It says map developers should be in the position to save a map at a distinct and specific file format. I wonder if this can be done with reasonable effort, it likely demands the use of object oriented programming.
The purpose is to enable the supply of maps to the gallery which can be digested by the latest release (B19 in this case). Maps saved with later development versions cannot be opened in B19.